4 years ago

Countries establish internal economic zones in order to

1 answer:

3 0

have fewer economic restrictions

Explanation:

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Radda [10]

Answer:

The skier's change in velocity is 7.69 meters per second.

Explanation:

The Newton's second law tells force is equal to the change on the linear momentum of a body:

$\sum\overrightarrow{F}=\frac{d\overrightarrow{p}}{dt}$

If we approximate the differential $\frac{d\overrightarrow{p}}{dt}$ to $\frac{\Delta\overrightarrow{p}}{\Delta t}$ :

$\sum\overrightarrow{F}=\frac{\Delta\overrightarrow{p}}{\Delta t}$

Using that linear momentum is mass times velocity:

$\sum\overrightarrow{F}=\frac{m\Delta\overrightarrow{v}}{\Delta t}$

Solving for $\Delta\overrightarrow{v}$ :

$\Delta\overrightarrow{v}=\frac{\Delta t\sum\overrightarrow{F}}{m}=\frac{(20\,s)(25\,N)}{65\,kg}$

$\Delta\overrightarrow{v}=7.69\,\frac{m}{s}$

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3 years ago

QveST [7]

I believe the answer is C

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3 years ago

ivolga24 [154]

No it does not because this weight is being balanced by a normal source

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Lemur [1.5K]

Atom* the particles are (Electrons)

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ivann1987 [24]

A. 20m/s because the unit for velocity is m/s

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3 years ago